{include file="public/header" /}
<div class="index_html houtai">
    {include file="public/second_header" /}


    <!-- 地下内容的开始 -->
    <div class="backgroud_content ">
        <!-- 左侧的开始 -->
        {include file="public/nav" /}
        <!-- 左侧的结束 -->
